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Class Information
Number: 700/293
Name: Data processing: generic control systems or specific applications > Specific application, apparatus or process > Electrical power generation or distribution system > System protection (e.g., circuit interrupter, circuit limiter, voltage suppressor) > Abnormal power, current, or impedance condition
Description: Subject matter including means for tripping a circuit breaker in response to a measured operating power, current, or impedance falling outside limits of normal operating condition.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7627400 |
Method and device for detecting electric arc phenomenon on at least one electric cable |
Dec. 1, 2009 |
| 7622886 |
Method for determination of the risk to disturbance-free operation of a frequency converter |
Nov. 24, 2009 |
| 7582986 |
Compensated inverse-time undervoltage load shedding systems |
Sep. 1, 2009 |
| 7576449 |
Method for converting direct voltage into three-phase alternating voltage |
Aug. 18, 2009 |
| 7565459 |
Combination I/O modules in a modular automation controller |
Jul. 21, 2009 |
| 7532955 |
Distributed protection system for power distribution systems |
May. 12, 2009 |
| 7532956 |
Distributed power and protection system |
May. 12, 2009 |
| 7526366 |
Electrical power control system, and method for setting electric state variables and/or parameters in a current conductor |
Apr. 28, 2009 |
| 7526393 |
Virtual branch load management |
Apr. 28, 2009 |
| 7469190 |
Automated system approach to analyzing harmonic distortion in an electric power system |
Dec. 23, 2008 |
| 7463985 |
Electric power quality indicator device and method |
Dec. 9, 2008 |
| 7447567 |
Electric power system suppressing corona discharge from viewpoint of environment |
Nov. 4, 2008 |
| 7446491 |
Intelligent power management for actuators |
Nov. 4, 2008 |
| 7421353 |
Digital integration method |
Sep. 2, 2008 |
| 7412338 |
Radio frequency device within an energy sensor system |
Aug. 12, 2008 |
| 7352522 |
Control means and method of controlling a current through a coil |
Apr. 1, 2008 |
| 7337081 |
Metering device with control functionality and method thereof |
Feb. 26, 2008 |
| 7321834 |
Method for calculating power flow solution of a power transmission network that includes interline power flow controller (IPFC) |
Jan. 22, 2008 |
| 7295133 |
Electrical circuit monitoring device |
Nov. 13, 2007 |
| 7282924 |
Computerized electricity system having an arc fault detecting sub-system |
Oct. 16, 2007 |
| 7280893 |
Business management system and method for a deregulated electric power market |
Oct. 9, 2007 |
| 7259950 |
Load-protection control circuit of power supply |
Aug. 21, 2007 |
| 7236099 |
Household appliance with user interface with bi-colored LEDs |
Jun. 26, 2007 |
| 7212951 |
Method for characterizing and analyzing 3-D shapes of molecules utilizing steric multiplets |
May. 1, 2007 |
| 7194338 |
Voltage collapse diagnostic and ATC system |
Mar. 20, 2007 |
| 7183887 |
Control means and method of controlling a current through a coil |
Feb. 27, 2007 |
| 7177727 |
Method for calculating power flow solution of a power transmission network that includes unified power flow controllers |
Feb. 13, 2007 |
| 7133751 |
Method and apparatus for detecting on-die voltage variations |
Nov. 7, 2006 |
| 7110864 |
Systems, devices, and methods for detecting arcs |
Sep. 19, 2006 |
| 7096175 |
Stability prediction for an electric power network |
Aug. 22, 2006 |
| 7081827 |
Power over Ethernet-prioritized active splitter |
Jul. 25, 2006 |
| 7069116 |
High impedance fault detection |
Jun. 27, 2006 |
| 7050959 |
Dynamic thermal management for integrated circuits |
May. 23, 2006 |
| 7006010 |
Clamp assemblies and methods |
Feb. 28, 2006 |
| 7006897 |
Apparatus, method and computer program product for monitoring AC line current through the step start resistors of a high voltage power supply |
Feb. 28, 2006 |
| 6996746 |
Apparatus and method to handle power supply failures for a peripheral device |
Feb. 7, 2006 |
| 6985800 |
Protection of an electric power transmission network |
Jan. 10, 2006 |
| 6975947 |
Power saving apparatus in an appliance |
Dec. 13, 2005 |
| 6963793 |
Distribution network monitoring and control system |
Nov. 8, 2005 |
| 6920404 |
Method of detecting residual capacity of secondary battery |
Jul. 19, 2005 |
| 6907321 |
Fault control and restoration in a multi-feed power network |
Jun. 14, 2005 |
| 6901298 |
Saving and restoring controller state and context in an open operating system |
May. 31, 2005 |
| 6882903 |
Electric device |
Apr. 19, 2005 |
| 6868311 |
Method and system for on-line dynamical screening of electric power system |
Mar. 15, 2005 |
| 6794775 |
Sensorless stall detection for motors |
Sep. 21, 2004 |
| 6788512 |
Electronic trip unit capable of analog and digital setting of circuit breaker setpoints |
Sep. 7, 2004 |
| 6775597 |
Security constrained optimal power flow method |
Aug. 10, 2004 |
| 6751561 |
Power saving method and apparatus for a portable appliance |
Jun. 15, 2004 |
| 6751528 |
Residential circuit arc detection |
Jun. 15, 2004 |
| 6741916 |
Accident point locating system |
May. 25, 2004 |
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